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题库 / GMATAdvanced-DS-81
Each entry in the multiplication table above is an integer that is either positive, negative,or zero. What is the value of a?
(1)h≠0
(2)c=f
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
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已知c*a=c, 求a，有两种情况：
(1)c不等于0时，a=c/c=1
(2)c等于0时，c=0.a等于任何数
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